Coring Operations Guidelines

Coring operations guidelines. Core samples are taken in order to measure accurately the reservoir parameters in hydrocarbon and water bearing formations, and also for other geological investigation.…

Core Handling and Evaluation

Cores are taken in order to measure accurately the reservoir parameters in hydrocarbon and water bearing formations, and for geological purposes. Whether a conventional steel/aluminium inner barrel…

Wellsite Coring Guidelines

Practical guidelines for wellsite coring operations. Three of the key inputs to formation evaluation for effective reservoir development and management are:

  • Reservoir geological description
  • Log…

Coring Operational Planning, Guidelines and Procedures

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 Recovery, Handling and Packing

A pre-job safety meeting shall be held before pulling the core barrel through the rotary table to ensure that the Drilling and Service Contractors’ personnel understand the job and potential hazards…

Coring Fluids

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…

Coring Trouble Shooting Guide

When any of these symptoms arise, come out of the hole immediately as damage may occur to bit and barrel.

Check pump strokes hourly or if pressure changes to determine if the pump is a problem or…

Coring Assemblies

This article describes the mains components of the coring assemblies: coring bits, core barels and drillstring.

Coring Bits

  • Coring Contractor shall provide a range of diamond coring heads.
  • The bit…