The Reverse Cut and Thread Method is recommended in case a logging tool containing a radioactive source is stuck and has to be fished. After this point the procedure deviates from the Cut and Thread Method. The weak point will not be broken when the fish has been latched into the overshot. The cable and … Wireline Logging Fishing – Reverse Cut and Thread Procedure
If a radioactive logging tool sticks in the hole, the following guidelines must be adhered to: Do not continue work the tool because this may result in accidentally breaking the weak link. The Drilling Supervisor shall provide the Operations Engineer and provide him with all relevant information regarding the position of fish, allowable tension of … Fishing Wireline with Radioactive Sources
The required equipment (Logging Contractor Fishing Kit) for both Cut and Thread and Reverse Cut and Thread methods are: Bowen overshot kit series 105 (H-131931) with a multiple choice of grapples and guides cable hanger kit (H-133930) with different sizes and weights of sinkerbars and at least two cable hangers. Rope socket kit (H-133929) subs … Fishing Equipment Required for Wireline Logging
Prior to any fishing operations ensure that all personnel involved are aware of their duties by means of a pre-operation safety meeting. Dressing the Tools Take a new grapple, grapple control and guide and assemble the overshot. Ensure that the correct type and size of grapple is used. Preparing the Cable The following procedures should … Wireline Logging Fishing – Cut and Thread Procedure
This article presents Formation Strength Tests Equipment and Procedure. Equipment Requirements A formation strength test requires: a Cement Pump with mud tank calibrated in ¼ bbl calibrated gauges covering anticipated pressure range mounted on a dedicated manifold a chart recorder a recording form. Test Pressure Limitations The test pressure shall be limited to a maximum … FST Procedure
This article describes the main geological services: Cutting sampling and description requirements. Cuttings Sampling Across reservoir: every 5 ft, and non-reservoir every 20 ft. Cutting samples shall be taken from the full width of the shakers so as to be representative of the interval drilled. When drilling at high ROP the drilling contractor shall assign … Mud Logging – Cutting sampling and description requirements
All the parameters specified in the contract scope of services shall be recorded against time and depth and continuously monitored. The following table lists the recording frequency and standard units to be used for all mud logging parameters. Parameters Parameter Recording Frequency Units Active pit volume Continuous – Alarmed bbls Reserve pit volumes & Trip … Mud Logging – Parameters Monitoring
A fully equipped computerised mud logging unit shall be available for recording and monitoring well generated data, for all exploration wells. There is no mandatory requirement for a full Mud Logging service for development wells which are not designated HTHP wells. Requirements The general requirements for the mud logging service to be provided are included … Mud Logging General Guidelines
The requirements for coring shall be agreed with the Drilling Department. The Programme shall include the follwing: the prognosed coring point (TVD – RKB or MD – RKB for deviated well) the length of core to be cut specifications for the determination of coring specifications for determining when coring is complete any special coring or … Coring Operational Planning, Guidelines and Procedures
Any special requirements for coring fluids shall be included in the Drilling Programme. The general requirements are described below: The mud gradient shall exert an overbalance over the formation pressure of no less than 200 psi. The static fluid loss shall be less than 8 cc. The viscosity and yield point shall be as low … Coring Fluids