(a) Every rig shall
be equipped with the number and size of guy wires as recommended by the
manufacturer. In the case of truck or trailer mounted rigs where no
manufacturer's recommendations are made, appropriate guy wires shall be used.
Exception: This rule does not apply when the manufacturer does not recommend
the use of wind guys and the following conditions are met:
(i) no one is in the mast during
operation,
(ii) no drill pipe,
casing, etc. is racked in the mast,
(iii) outriggers are utilized, and
(iv) the mast height is sixty (60) feet or
less.
(c)
Where the number, size and utilization of guy wires are recommended by the
derrick manufacturer, anchors shall be used to secure the guy wires, except
when other means or methods of anchoring the guy wires are recommended by the
manufacturer which are at least as effective as these Rules and Regulations.
(i) Expanding anchors, pipe anchors, concrete
anchors, or other approved techniques shall be used, except that temporary,
moveable, or driven stakes shall not be used.
(ii) Anchor placement and pull test.
(A) With respect to anchors installed,
reinstalled or relocated on or before September 24, 1970 anchors shall be
proof-tested along an angle that approximates the wind guys working plane
within twelve (12) months prior to the use of the anchors. Such tests will be
made at the poundage determined by the anchors location (per Figure 2a) within
sector A, B, or C, and computed according to the appropriate sector curve on
Figure I. If either of the two (2) front anchors falls in a sector which
requires a higher test pull, both front anchors shall be tested as if they were
located in the sector requiring the higher pull test. If ground is frozen at
the time of the test and anchors are to be used again when the ground is not
frozen, the anchors must be retested before use. If any anchor is more than
three (3) feet above or below the well ground level, Figure 3 shall be used to
determine the adjusted distance for which the pull test requirement will be
established using Figure 2a. Anchors to be used for singles derricks only shall
be proof tested to 10,000 pounds and shall be located within sector A, B or C
of Figure 2a.
(B) With respect to
anchors installed, reinstalled or relocated from and after September 25, 1970,
anchors shall be proof tested along an angle that approximates the wind-guys
working plane within twelve (12) months prior to the use of the anchors. Such
tests will be made at the poundage determined by the anchors location (per
Figure 2b) within sector A, B or C, and computed according to the appropriate
sector curve on Figure 1. If any anchor falls in a sector which requires a
higher test pull, all four (4) anchors shall be tested as if they were located
in the sector requiring the higher pull test. If ground is frozen at the time
of the test and anchors are to be used again when the ground is not frozen, the
anchors must be retested before use. If any anchor is more than three (3) feet
above or below the well ground level, Figure 3 shall be used to determine the
adjusted distance for which the pull test requirements will be established
using Figure 1. Anchors to be used for singles derricks only shall be proof
tested to 10,000 pounds and shall be located within sector A, B or C of Figure
2b.
(iii) Each well site
shall have available a such well site in an accessible weatherproof container
an anchor record. Such anchor record shall state whether the anchor was
installed prior or subsequent to September 24, 1970, the date of any relocation
or reinstallation of any anchor at the well site after September 24, 1970, each
anchors pull test (sector) from Figure 2a or 2b, and the date, amount of such
pull test, and identification of the tester.
(A) Each anchor shall be pulled and held for
a period of two (2) minutes after all movement (creep) has stopped.
(B) The anchor record shall state "FOR
SINGLES DERRICKS ONLY" if the anchors are only tested to 10,000
pounds.
CLARIFICATION OF SECTIONS 2.(c) (ii) and
2.(c) (iii)
Individual anchors installed, reinstalled or relocated prior
to September 25, 1970 will be tested in accordance with Section
2,(c) (ii) (A) and Figure 2a. Individual
anchors installed, reinstalled or relocated September 25, 1970, or later, will
be installed and tested in accordance with Section
2.(c) (ii)(B) and Figure 2b. This
means that the installation of a single anchor subsequent to September 25,
1970, would not require the remaining anchors at the same well site to be
tested and installed according to Section
2.(c) (2)(B) and Figure 2b, until
such anchor(s) has been installed, reinstalled or relocated. If there is any
doubt that individual anchors were installed before September 25, 1970, such
anchor's record will indicate this information, and will be tested in
accordance with Section
2.(c)(ii) Figure 2b.
(iv) No derrick shall be rigged up on a work
site unless the anchors have been installed and tested in accordance with this
subsection.
(v) All anchor testing
units shall be certified by the State of Wyoming Workers' Safety OSHA
Division.
(vi) Guy wire anchors and
drilling unit placement.
(A) Guy wire anchors
shall be positioned in accordance with Figure 2a or 2b of this
Chapter.
(B) The well operator
shall provide a visible marker in such a position that a straight line through
the marker and through the well head will form an angle with a line through any
anchor and the well head which complies with the minimum angle requirements as
follows:
*Minimum Angle Distances From Well Centerline
|
Sector
|
Each Quadrant
|
Minimum Angle
|
Front & Rear
|
Sides
|
|
A
|
20E
|
35°
|
14
|
10
|
|
B
|
30°
|
30°
|
17
|
10
|
|
C
|
45°
|
22.5°
|
24
|
10
|
*In the use of Figure 2b, if any anchor in the pattern falls
within Sector "C", the minimum angle on all anchors is 22.5°. One or more
anchors located in Section "B", with the remaining anchors in Sector "A",
requires the minimum angle to be 30° on all anchors. In the use of Figure
2a, the minimum angle of any anchor is 22.5°. A field determination of the
minimum angle can be found by measuring these distances in convenient units
such as feet, yards or paces in reference to the well centerline, the anchors
and the longitudinal axis of the unit. (Example: With a single anchor in the
pattern located in Sector "C", a person could take twenty four (24) paces from
the well head on an imaginary line which bisects the two (2) adjacent anchors
between which the unit will be placed. At this point there would be placed a
marker or a stake. He would then take ten (10) paces to the left and turn so he
was aligned with the well head. If anchors "A" and "C" (Diagram A) are
"outside" his alignment, these anchors would be satisfactory. Going back to the
center marker, he would repeat this procedure to the right. If anchors "B" and
"D" are outside his alignment, the center marker is satisfactory. If alignment
to either the left or right was not satisfactory, the center marker or stake
would be moved to the left or right as needed and the alignment rechecked until
the center marker is located properly.)
(I) The visible marker shall be placed on a
direct line from the well head which passes through the center marker at least
100 feet from the head.
(C) The drilling unit operator shall center
his unit in line with the marker and the well head.
(D) Where there is provided a readily visible
and clearly defined pad for the positioning of the unit which will maintain the
required minimum angle from the longitudinal axis of the unit and well to any
anchor, the use of the marker in
Section
2.(c) (vi)(A)of this Chapter is
optional.
(vii) Guy
wires shall not be any closer than ten (10) feet from power lines, and in no
case shall a guy wire be extended above or below a power line.
(viii) Installation, testing and maintenance
of guy wire anchors shall be the responsibility of the party issuing the
contract for the drilling.
(ix) All
chains, boomers, clamps and tensioning devices that will remain in the working
guy line shall have as much strength as the guy line. Those chains, boomers,
clamps and tensioning devices not of sufficient strength shall be bypassed by
continuing the guy line through or around the anchor, then back to the guy line
again. The guy line shall be properly secured with at least three (3) U-bolt
clamps of proper size, or their equivalent.
(A) A fairlead (sheave) may be attached to
the eye of the anchor and used to pass the wind guy back to itself.
(x) A thorough inspection of all
guy wires in use shall be made at least once a year and shall be visually
inspected prior to each rig-up, and a full written, dated and signed report of
the guy lines' conditions kept at the rig where readily available for
inspection by department personnel. All inspections shall be performed by a
competent person authorized by the employer to perform such inspection. Defects
such as those specified in
Chapter 5, Section
6.(b)(i) through (ix) of these
rules and regulations shall require the guy line(s) to be removed from service.
Click to View
Image
(Note: Directions shown are for this example only and do not
require all units to be placed in a North/South position)
Click to View
Image
Click to View
Image
Figure 2a
Click to View
Image
Figure 2b
Click to View
Image
ANCHOR ELEVATION ADJUSTMENT CHART
Directions for the use of Figure 3. After determining the
elevation difference between the well bore ground level and the anchor ground
level, find that difference on the chart at "Anchor Elevation Above or Below
Well Ground Level". Follow that difference line horizontally until it meets the
vertical line which represents the actual distance from the well head or bore
to the anchor. Then follow the slanted line, either up or down as applicable,
until "0" (Well Ground Level) is reached. Read vertically down and find the
"Horizontal Distance From Well - Feet". This adjusted distance is then applied
to Figure 1 to determine the required pull test according to the Sector in
which the anchor is located. (Example: An anchor located ten (10) feet above
well ground level 100 feet from the well head or well bore, using Figure 3,
requires the same pull test as though it was 110 feet from the well head or
well bore. An anchor fifteen (15) feet below well ground level eight (80) feet
from the well head or well bore would require the same pull test as though the
anchor was seventy (70) feet from the well head or well
bore.)
