Drilling

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Is the acquisition of openhole logs too risky or require too much expensive rig time?

Our Solution

LWT - Logging While Tripping allows acquisition of openhole logging data without disruption of drilling operations. LWT is a patented technique in which memory based openhole logs are acquired in a method that is more cost effective, uses less rig time, and has fewer inherent risks than wireline, shuttle (thru-the-bit), or logging-while-drilling (LWD) methods. LWT allows openhole logs to be acquired in vertical, deviated, horizontal and tough logging condition wells where logging was previously considered too risky or too expensive.

Our Solution (Continued)

With more than 1000 jobs acquired worldwide in onshore and offshore applications, LWT tools have achieved greater than 98.5% uptime with no tools ever being lost in hole. LWT operations are simple, safe, and reliable:

  • LWT drilling collars are positioned in the BHA during the last bit run and used for normal drilling operations.

  • The slim LWT tools are pumped down through the drill pipe and latched into LWT collars once TD is reached.

  • Vertical, deviated, horizontal and tough logging condition wells can be safely logged while tripping out.

  • At all times during LWT operations full well control is maintained allowing pipe rotation, reciprocation and circulation.

  • There are no wireline, tractors, shuttle systems or specialized bit designs required.

  • Ample 72 hour battery life as well as tools rated to 300°F (150°C) and 14 kpsi (100MPa) ensure a wide range of applications.

  • Tools and sources may be retrieved by slickline or wireline at any time during operations.

  • With full retrievability, lost-in-hole charges are virtually eliminated.

  • LWT's total cost (service + rig time) is significantly less than any alternate openhole logging service.

The real cost of openhole logging is the incremental rig time used in conveyance and acquisition. LWT acquires wireline quality data while essentially eliminating this considerable expense and mitigating operational risk.

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Resource Downloads

ANIMATION: OVERVIEW OF LWT FIELD OPERATIONS

ANIMATION: LWT VS ALTERNATIVE HORIZONTAL LOGGING TECHNIQUES

ANIMATION: USING LWT TO ELIMINATE WIRELINE BRIDGING

VIDEO: DESTRUCTIVE PROOF TESTING OF LWT COMPOSITE COLLARS

See how Cordax adds value to your colleagues…

Openhole logs allowing full petrophysical interpretation in all well geometries.

Data interpretation to optimize completion program and enhance producibility

Optimize production and accurately book reserves

Explore Cordax well optimization benefits…

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Application

  • Formation Evaluation method replacing wireline, LWT, TBL, and pipe conveyed OH logging methods

Benefits

  • Wireline quality petrophysical data acquired during routine trip out of well

  • Eliminates bridging and lost-in-hole (LIH) exposure versus other methods

  • No extra pipe trip or hole conditioning

  • Data acquisition in any well trajectory

  • Tools pumped into BHA only when required, reducing wear and risk

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Application

  • Casing point detection

  • Evaluate Multi Laterals

  • Kick-off point detection in build section

Benefits

  • Deployment at any point during drilling operations

  • Virtually invisible to drilling and well construction activities

  • Rig time savings by reducing extra trips

  • Allows timely completion decisions

  • Incorporates well data such as mud logs, gas, ROP, pore pressure

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Application

  • Frack strategy optimization

  • Completion design optimization

  • Optimal zone selection

Benefits

  • Accurately locate and plan frack stages incorporating well parameters with LWT acquired Neutron, Density, Resistivity and Spectral Gamma Ray

  • Providing the physical property data necessary for production optimization

  • Compete geological model and update reserve calculation in resource plays