Technical Manual - Section 3 (Safety Hazards)

More documents

Recommendations

Info

ecommendations. In the absence of manufacturer recommendations, API RP 9B shall be followed. GUYWIRE ANCHORS The mast manufacturer's recommendations shall be followed. In the absence of manufacturer recommenda-tions the location diagram, Figure III:1-3, may be used. Each zone requires an anchor of different holding capacity. If anchors are located in more than one zone, then all anchors should be of the capacity required for the greater capacity zone. For example, if one anchor is located in "ZONE C" and the remaining anchors are located in "ZONE D," all anchors shall meet the holding capacity specified in the chart for "ZONE C." See Figure III:1-4. Figure III:1-3. Reccommended Anchor Locations Figure III:1-4. Anchor Capacity Requirements for Each Zone III:1-4
D. OBSERVATIONS, DIRECTIONS, AND CONCLUSIONS VISUAL OBSERVATIONS There are characteristic visual observations that can serve as indicators of rig stability. They include, but are not limited to, the following: @ @ @ @ @ The foundation supports the rig, substructure, and all applied loads while in an operational mode, without excessive movement. Basically in a level and plumb configuration. No large movement is observable between the mast support structure and the rotary/setback support structure when the slips are set and the load is removed from the mast, or vice versa. The empty travel block hangs plumb with the centerline of the wellbore and the mast support structure remains level. The mast support structure and/or substructure does not lean to one side more than the other when the load is applied. The guywire on one side becomes noticeably taut while the guywire on the opposite side becomes slack. The guywire anchor(s) show(s) no visible signs of movement during the loading and unloading of the system while in operational mode. The chart presented in Figure III:1-5 may be used as a guide to the pretensioning of guywires. This method is commonly referred to as the Catenary Method (guywire sag method). SUPPORT MANUAL The support manual, entitled Guideline on the Stability of Well Servicing Derricks, is divided into work sections and intended to supplement this chapter. It provides a detailed analysis of existing guides and standards along with state-of-the-art developments. Section 3 provides the direction and guidance necessary to evaluate and select the proper system to assure rig stability. Section 4 discusses the installation of guywire anchor systems. It is extremely important to point out that stability is dependent on the entire system, and not on a single component. In the absence of support documentation or manufacturer specifications, Section 6 sets forth the criteria for performing effective pull testing. It further identifies what would be acceptable in lieu of actual pull testing. CONCLUSION No set of observations or recommendations should be so restrictive or subjective as to preclude the use of innovative approaches to derrick stability systems. Properly designed substructures and base beams have been used effectively and safely as anchorages for guywires. Engineering calculations based on sound engineering principals may also be used as evidence of an acceptable alternative to pull testing. Dead weight of equipment, fabricated components (i.e., padeyes) and other appurtenances are all considerations in determining rig stability. The derrick manufacturer's specifications and recom-mendations should be the preferred and primary means of determining derrick stability. Guywire anchors, newly installed according to the manufacturer's specifications, may be used without the III:1-5
Page 1 and 2: OR-OSHA TECHNICAL MANUAL OR-OSHA TE
Page 3 and 4: SECTION III: CHAPTER 1 OIL WELL DER
Page 5: C. STABILITY CONSIDERATIONS FOUNDAT
Page 9 and 10: SECTION III: CHAPTER 2 PETROLEUM RE
Page 11 and 12: Year Process name Purpose By-produc
Page 13 and 14: Crude oils are also defined in term
Page 15 and 16: (dicycloparaffins) found in the hea
Page 17 and 18: and boilers can leave deposits of v
Page 19 and 20: C. PETROLEUM REFINING OPERATIONS IN
Page 21 and 22: Table III:2-3 OVERVIEW OF PETROLEUM
Page 23 and 24: D. DESCRIPTION OF PETROLEUM REFININ
Page 25 and 26: CRUDE OIL DISTILLATION (FRACTIONATI
Page 27 and 28: Even though these are closed proces
Page 29 and 30: The solvent is separated from the p
Page 31 and 32: Table III:2-9 VISBREAKING PROCESS F
Page 33 and 34: HEALTH AND SAFETY CONSIDERATIONS Fi
Page 35 and 36: Figure III:2-14 Fluid Catalytic Cra
Page 37 and 38: HYDROCRACKING Hydrocracking is a tw
Page 39 and 40: egeneration and changeover. Catalys
Page 41 and 42: CATALYTIC HYDROTREATING Catalytic h
Page 43 and 44: chemicals and other hazards such as
Page 45 and 46: needed to prevent HCl from entering
Page 47 and 48: ALKYLATION Alkylation combines low-
Page 49 and 50: HEALTH AND SAFETY CONSIDERATIONS Fi
Page 51 and 52: Figure III:2-23 Molecular Sieve Dry
Page 53 and 54: SATURATE GAS PLANTS Saturate gas pl
Page 55 and 56: Table III:2-21. STEAM REFORMING PRO
Page 57 and 58:
Safety Control of treater temperatu
Page 59 and 60:
minerals and dissolved impurities t
Page 61 and 62:
phenols, ammonia, sulfides, and oth
Page 63 and 64:
GAS AND AIR COMPRESSORS Both recipr
Page 65 and 66:
Safety Depending on the product and
Page 67 and 68:
APPENDIX III:2-1. GLOSSARY ABSORPTI
Page 69 and 70:
DEWAXING The removal of wax from pe
Page 71 and 72:
interaction of sulfur compounds in
Page 73 and 74:
SECTION III: CHAPTER 3 PRESSURE VES
Page 75 and 76:
Figure III:3-1. Some Major Parts of
Page 77 and 78:
spherical with wall thickness in th
Page 79 and 80:
LIQUID PENETRANT TEST (PT) This met
Page 81 and 82:
D. INFORMATION FOR SAFETY ASSESSMEN
Page 83 and 84:
@ Other design code vessels -- Maxi
Page 85 and 86:
SECTION III: CHAPTER 4 INDUSTRIAL R
Page 87 and 88:
Regulator Coordinate Robot Cylindri
Page 89 and 90:
Figure III:4-2. Industrial Robots:
Page 91 and 92:
DEGREES OF FREEDOM Regardless of th
Page 93 and 94:
OTHER ACCIDENTS Other accidents can
Page 95 and 96:
SAFEGUARDING DEVICES Personnel shou
Page 97 and 98:
F. BIBLIOGRAPHY American National S
Page 99 and 100:
Enabling Device A manually operated
Page 101 and 102:
Start-up, Initial Initial drive pow
show all

Technical Manual - Section 3 (Safety Hazards)

Create successful ePaper yourself

Delete template?

Save as template?