Drilling Fluid Management & Disposal
Drilling fluid waste management and solids control of drilling mud related technical and developed situation.
SCALPING SHAKERS AND GUMBO REMOVE CUTTINGS; HEALTH, SAFETY,AND ENVIRONMENT AND WASTE MANAGEMENT (CUTTINGS); DRILLING FLUID MAINLY CUTTINGS PRODUCTS.
Besides satisfying the basic requirements of scientific drilling construction, drilling fluid should satisfy the requirements of scientific test, well logging and borehole log, etc. Detailed requirements can be found as follows:
Continue reading “Requirements of Scientific Drilling for Drilling Fluid”
When oil-based mud is used, the drilled formation solids (cuttings) are regarded as controlled or hazardous waste. As such, they can be disposed of in three ways: decontamination treatment followed by discharge into the sea, injection of the cuttings into the well, or transfer to a controlled hazardous-waste landfill. The lowest environmental effect for solids disposal, especially for offshore operation, is decontamination treatment followed by discharge. However, conventional decontamination technology exhibits limited efficiency in extracting oil from the drill solids.
Continue reading “Enhanced Treatment of Oil-Contaminated Cuttings – Nanoemulsion”
The fates of drill cuttings from offshore wells, and their effect on the marine environment, have been studied by means of side-scan sonar, scuba and underwater photography. Adverse effects are minimal and short-lived, and in some instances the accumulation of cuttings may be beneficial. Modification of normal mud and cuttings discharge procedures would be needed only in very unusual circumstances.
Continue reading “FATE OF DRILL CUTTINGS IN THE MARINE ENVIRONMENT”
The rotating separator process is based on a different principle than the shale shaker process. The mud line flow is fed into the slowly rotating separator. The drilling fluid contaminated with drilled cuttings is fed into the centre of a screen coated drum as shown schematically in Fig. 1. The outside of the drum is connected to an under-pressurised ventilation system.
Continue reading “Use of Rotating Separators as an Alternative to Shale Shakers”
